Ductile Fe-based amorphous alloy

Hong Kyu Kim, Kwang Bok Lee, Jae Chul Lee

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Experiments demonstrated that the addition of a minute amount of V to Fe 52Co (20-x)B 20Si 4Nb 4V x amorphous alloy induces atomic-scale phase separation, which dramatically enhances the plasticity. Especially, Fe 52Co 17.5B 20Si 4Nb 4V 2.5 amorphous alloy exhibited a strength of 4.7GPa and a fracture strain of 8.0%, which is the largest strain reported for Fe-based amorphous alloys. In this study, the structural origin of the enhanced plasticity is explored by examining the role played by the phase separating element on the packing density and strain localization.

Original languageEnglish
Pages (from-to)399-403
Number of pages5
JournalMaterials Science and Engineering A
Volume552
DOIs
Publication statusPublished - 2012 Aug 30

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Keywords

  • Amorphous alloy
  • Phase separation
  • Plasticity
  • Strain localization
  • Structural disordering

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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